Do I need a permit to rent out my summer house?
Generally not, if you are an individual renting out 1-2 summer houses (couples can rent out 3-4). The Danish Business Authority does not normally treat this as commercial rental if you have real personal use of at least 2 weeks a year per house, and the rental does not exceed 41 weeks a year.
Commercial rental, on the other hand, requires a permit from the Danish Business Authority under section 1 of the Summer Houses Act.
How many weeks can I use the summer house myself?
This is a different question from the one above. The Danish Business Authority’s guidance on section 40 of the Planning Act states that you as the owner may use the summer house yourself for up to 34 weeks in the summer period (1 March to 31 October) and up to 9 weeks in the winter period (1 November to the end of February), 43 weeks in total.
This is a right to use the house, not a right to rent it out. How many weeks you may rent it out is governed by the Summer Houses Act and the guidance above, not by this figure.
This page is general information, not tax or legal advice. The rules change, and your situation may differ. Check with the Danish Business Authority, the Danish Tax Agency or an adviser before you make a decision.
Sources
The Summer Houses Act, LBK no. 400 of 12.04.2024, section 1, https://www.retsinformation.dk/eli/lta/2024/400 (in Danish). The Danish Business Authority, guidance on renting out summer houses, VEJ no. 9035 of 08.01.2021, https://www.retsinformation.dk/eli/retsinfo/2021/9035 (in Danish). The Planning Act, LBK no. 572 of 29.05.2024, section 40, https://www.retsinformation.dk/eli/lta/2024/572 (in Danish). Accessed 25.09.2026.